| /* |
| * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 5024119 |
| * @summary Add ReferenceType.getAllInstances () method to JDI. |
| * @author jjh |
| * |
| * @modules jdk.jdi |
| * @run build TestScaffold VMConnection TargetListener TargetAdapter |
| * @run compile -g InstancesTest.java |
| * @run driver InstancesTest |
| */ |
| |
| /* |
| * To run this test do this: |
| * runregress -no InstancesTest <cmd line options> |
| * |
| * where <cmd line options> are the options to be used to |
| * launch the debuggee, with the classname prefixed with @@. |
| * For example, this would run java2d demo as the debuggee: |
| * runregress -no InstancesTest -classpath |
| * $jdkDir/demo/jfc/Java2D/Java2Demo.jar \ |
| * -client @@java2d.Java2Demo |
| * |
| * In this mode, the specified debuggee is launched in debug mode, |
| * the debugger waits 20 secs, and then connects to the debuggee, suspends |
| * it, and 'debugs' it. |
| * |
| * If <cmd line options> is not specified, then the InstancesTarg class below |
| * is run as the debuggee. |
| */ |
| import com.sun.jdi.*; |
| import com.sun.jdi.event.*; |
| import com.sun.jdi.request.*; |
| |
| import java.util.*; |
| |
| class InstancesFiller { |
| // This many instances of this are created. |
| static int FILLER_COUNT = 200000; |
| static InstancesFiller[] lotsAndLots = new InstancesFiller[ |
| InstancesFiller.FILLER_COUNT]; |
| int xx; |
| InstancesFiller(int p1) { |
| xx = p1; |
| } |
| } |
| |
| class InstancesTarg { |
| // This many instances + 1 of this class are created. |
| static int TARG_COUNT = 1000; |
| static InstancesTarg theInstancesTarg; |
| static InstancesTarg[] allInstancesTargs; |
| |
| // Each instance will point to the theInstancesTarg |
| InstancesTarg oneInstancesTarg; |
| |
| public static void bkpt() { |
| } |
| |
| public static void main(String[] args) { |
| System.out.println("Howdy!"); |
| for (int ii = 0; ii < InstancesFiller.lotsAndLots.length; ii++) { |
| InstancesFiller.lotsAndLots[ii] = new InstancesFiller(ii); |
| } |
| |
| theInstancesTarg = new InstancesTarg(); |
| allInstancesTargs = new InstancesTarg[InstancesTarg.TARG_COUNT]; |
| for (int ii = 0; ii < InstancesTarg.TARG_COUNT; ii++) { |
| allInstancesTargs[ii] = new InstancesTarg(); |
| allInstancesTargs[ii].oneInstancesTarg = theInstancesTarg; |
| } |
| bkpt(); |
| |
| System.out.println("Goodbye from InstancesTarg!"); |
| } |
| } |
| |
| /********** test program **********/ |
| |
| public class InstancesTest extends TestScaffold { |
| static String targetName = "InstancesTarg"; |
| ReferenceType targetClass; |
| ThreadReference mainThread; |
| |
| InstancesTest(String args[]) { |
| super(args); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| /* |
| * If args contains @@xxxx, then that is the |
| * name of the class we are to run. |
| */ |
| for (int ii = 0; ii < args.length; ii ++) { |
| if (args[ii].startsWith("@@")) { |
| targetName = args[ii] = args[ii].substring(2); |
| break; |
| } |
| } |
| new InstancesTest(args).startTests(); |
| } |
| |
| /* |
| * Used to sort a list of ReferenceTypes by |
| * instance count. |
| */ |
| class ToSort implements Comparable<ToSort> { |
| long count; |
| ReferenceType rt; |
| |
| public ToSort(long count, ReferenceType rt) { |
| this.count = count; |
| this.rt = rt; |
| } |
| |
| public int compareTo(ToSort obj) { |
| if (count < obj.count) return -1; |
| if (count == obj.count) return 0; |
| return 1; |
| } |
| } |
| |
| protected void runTests() throws Exception { |
| /* |
| * Get to the top of main() |
| * to determine targetClass and mainThread |
| */ |
| int CUT_OFF = 1000; |
| BreakpointEvent bpe; |
| bpe = startToMain(targetName); |
| targetClass = bpe.location().declaringType(); |
| mainThread = bpe.thread(); |
| |
| if (targetName.equals("InstancesTarg")) { |
| resumeTo("InstancesTarg", "bkpt", "()V"); |
| } else { |
| // Let debuggee run for awhile to get classes loaded |
| vm().resume(); |
| try { |
| System.err.println("Press <enter> to continue"); |
| System.in.read(); |
| System.err.println("running..."); |
| |
| } catch(Exception e) { |
| } |
| vm().suspend(); |
| } |
| |
| // Get all classes. |
| long start = System.currentTimeMillis(); |
| List<ReferenceType> allClasses = vm().allClasses(); |
| long end = System.currentTimeMillis(); |
| System.out.println( allClasses.size() + |
| " classes from vm.allClasses() took " + |
| (end - start) + " ms"); |
| |
| long[] counts; |
| |
| // Test for NPE |
| { |
| boolean pass = false; |
| try { |
| counts = vm().instanceCounts(null); |
| } catch (NullPointerException ee) { |
| pass = true; |
| } |
| if (!pass) { |
| failure("failure: NullPointerException not thrown on instanceCounts(null)"); |
| } |
| } |
| |
| // Test for 0 length array |
| { |
| List<ReferenceType>someClasses = new ArrayList(2); |
| counts = vm().instanceCounts(someClasses); |
| if (counts.length != 0) { |
| failure("failure: instanceCounts with a zero length array fails: " + |
| counts.length); |
| } |
| } |
| |
| // Test various values of maxInstances |
| if (targetClass.name().equals("InstancesTarg")) { |
| List<ObjectReference> noInstances = targetClass.instances(0); |
| if (noInstances.size() != InstancesTarg.TARG_COUNT + 1) { |
| failure("failure: instances(0): " + noInstances.size() + ", for " + targetClass); |
| } |
| noInstances = targetClass.instances(1); |
| if (noInstances.size() != 1) { |
| failure("failure: instances(1): " + noInstances.size() + ", for " + targetClass); |
| } |
| boolean pass = false; |
| try { |
| noInstances = targetClass.instances(-1); |
| } catch (IllegalArgumentException ee) { |
| pass = true; |
| } |
| if (!pass) { |
| failure("failure: instances(-1) did not get an exception"); |
| } |
| } |
| |
| // Instance counts for all classes |
| start = System.currentTimeMillis(); |
| counts = vm().instanceCounts(allClasses); |
| end = System.currentTimeMillis(); |
| |
| if (counts.length == 0) { |
| System.out.println("failure: No instances found"); |
| throw new Exception("InstancesTest: failed"); |
| } |
| |
| // Create a list of ReferenceTypes sorted by instance count |
| int size = 0; |
| List<ToSort> sorted = new ArrayList(allClasses.size()); |
| for (int ii = 0; ii < allClasses.size(); ii++) { |
| System.out.println(counts[ii] + " " + allClasses.get(ii)); |
| size += counts[ii]; |
| ToSort tos = new ToSort(counts[ii], allClasses.get(ii)); |
| sorted.add(tos); |
| } |
| |
| System.out.println("instance counts for " + counts.length + |
| " classes got " + size + " instances and took " + |
| (end - start) + " ms"); |
| |
| |
| boolean gotInstancesFiller = false; |
| boolean gotInstancesTarg = false; |
| |
| Collections.sort(sorted); |
| for (int ii = sorted.size() - 1; ii >= 0 ; ii--) { |
| ToSort xxx = sorted.get(ii); |
| if (xxx.count <= CUT_OFF) { |
| break; |
| } |
| if (xxx.rt.name().equals("InstancesFiller") && |
| xxx.count == InstancesFiller.FILLER_COUNT) { |
| gotInstancesFiller = true; |
| } |
| if (xxx.rt.name().equals("InstancesTarg") && |
| xxx.count == InstancesTarg.TARG_COUNT + 1) { |
| gotInstancesTarg = true; |
| } |
| } |
| if (!gotInstancesFiller) { |
| failure("failure: Expected " + InstancesFiller.FILLER_COUNT + |
| " instances of InstancesFiller"); |
| } |
| if (!gotInstancesTarg) { |
| failure("failure: Expected " + (InstancesTarg.TARG_COUNT + 1) + |
| " instances of InstancesTarg"); |
| } |
| |
| // Instances, one class at a time, in sorted order, printing each line |
| if (true) { |
| System.out.println("\nGetting instances for one class " + |
| "at a time (limited) in sorted order"); |
| List<ReferenceType> rtList = new ArrayList(1); |
| rtList.add(null); |
| long start1 = System.currentTimeMillis(); |
| size = 0; |
| long count = 0; |
| for (int ii = sorted.size() - 1; ii >= 0 ; ii--) { |
| ToSort xxx = sorted.get(ii); |
| if (xxx.count <= CUT_OFF) { |
| break; |
| } |
| rtList.set(0, xxx.rt); |
| start = System.currentTimeMillis(); |
| List<ObjectReference> oneInstances = xxx.rt.instances(19999999); |
| end = System.currentTimeMillis(); |
| size += oneInstances.size(); |
| count++; |
| System.out.println("Expected " + xxx.count + " instances, got " + |
| oneInstances.size() + |
| " instances for " + sorted.get(ii).rt + |
| " in " + (end - start) + " ms"); |
| |
| if (xxx.rt.name().equals("InstancesFiller") && |
| oneInstances.size() != InstancesFiller.FILLER_COUNT) { |
| failure("failure: Expected " + InstancesFiller.FILLER_COUNT + |
| " instances of InstancesFiller"); |
| } |
| if (xxx.rt.name().equals("InstancesTarg") && |
| oneInstances.size() != InstancesTarg.TARG_COUNT + 1) { |
| failure("failure: Expected " + (InstancesTarg.TARG_COUNT + 1) + |
| " instances of InstancesTarg"); |
| } |
| |
| } |
| |
| end = System.currentTimeMillis(); |
| |
| System.out.println(size + " instances via making one vm.instances" + |
| " call for each of " + count + |
| " classes took " + (end - start1) + " ms"); |
| System.out.println("Per class = " + |
| (end - start) / allClasses.size() + " ms"); |
| } |
| |
| /* |
| * deal with results of test |
| * if anything has called failure("foo") testFailed will be true |
| */ |
| if (!testFailed) { |
| println("InstancesTest: passed"); |
| } else { |
| throw new Exception("InstancesTest: failed"); |
| } |
| } |
| } |